Wireless conference system

ABSTRACT

A wireless conference system includes a master device and a slave device. The master device includes a master user interface, a master BLUETOOTH unit, a master memory unit, and a command converting unit. The master user interface includes a master screen. The master memory unit saves a conference document. The slave device includes a slave user interface, a slave BLUETOOTH unit, and an executing unit. The slave memory unit saves a copy of the conference document. Operation commands to operate the conference document are input through the master user interface. The command converting unit converts the operation commands to corresponding slave commands. The corresponding slave commands are transmitted to the slave device by the master BLUETOOTH unit and the slave BLUETOOTH unit. The executing unit executes the corresponding slave commands to operate the copy of the conference document.

BACKGROUND

1. Technical Field

The present disclosure relates to conference systems and, particularly,to a wireless conference system.

2. Description of Related Art

Wireless local area network (WLAN) such as Wireless Fidelity (WiFi) iscommonly used in a short distance conference system. However, the costfor establishing WLAN is high, thus increasing the cost of the shortdistance conference system.

Therefore, it is desirable to provide a wireless conference system,which can overcome the above-mentioned limitation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a wireless conference system, according toan exemplary embodiment, the wireless conference system including amaster device and a slave device.

FIG. 2 shows that the master device displays a conference document.

FIG. 3 shows that the slave device displays the copy of the conferencedocument shown in FIG. 2.

DETAILED DESCRIPTION

Referring to FIG. 1, a wireless conference system 100, according to anexemplary embodiment, includes a master device 10 and at least a slavedevice 20. The master device 10 can be a computer, a cell phone, or apersonal digital assistant (PDA). In the present embodiment, the masterdevice 10 is a computer. The slave device 20 can be a computer, a cellphone, or a personal digital assistant (PDA). In the present embodiment,the slave device 20 is a cell phone.

The master device 10 includes a master user interface 101, a masterBLUETOOTH unit 102, an inquiring unit 103, a master memory unit 104, ananalyzing unit 105, a command converting unit 106, and a master codec107.

The master user interface 101 includes a master screen 1011, a mouse1012, and a keyboard (not shown). The master user interface 101 isconfigured for inputting a start command to start the master BLUETOOTHunit 102. The master user interface 101 is also configured for inputtingoperation commands to operate a conference document saved in the mastermemory unit 104. The master BLUETOOTH unit 102 is connected to themaster user interface 101. The master BLUETOOTH unit 102 is configuredfor generating a communication request and transmitting BLUETOOTHsignals. The inquiring unit 103 is connected to the master BLUETOOTHunit 102 and is configured for generating an inquiry message. The mastermemory unit 104 is connected to the inquiring unit 103 and is configuredfor saving the conference document and a first resolution of the masterscreen 1011. In the present embodiment, the first resolution is 1024pixels multiplied by 768 pixels. The analyzing unit 105 is connected tothe inquiring unit 103. The command converting unit 106 is connected tothe master user interface 101 and configured for converting theoperation commands to the corresponding slave commands. The master codec107 is connected to the analyzing unit 105 and is configured forencoding the inquiry message and the corresponding slave commands intoBLUETOOTH signals.

The slave device 20 includes a slave user interface 201, a slaveBLUETOOTH unit 202, an answering unit 203, a slave memory unit 204, aslave codec 205, and an executing unit 206.

The slave user interface 201 includes a slave screen 2011 and a keyboard(not shown). The slave user interface 201 is configured for inputting astarting command to start the slave BLUETOOTH unit 202 and inputting anaccepting command to accept the communication request when the slaveBLUETOOTH 202 receives the communication request. The slave BLUETOOTHunit 202 is connected to the slave user interface 201 and is configuredfor generating a response message corresponding to the communicationrequest and transmitting BLUETOOTH signals. The answering unit 203 isconnected to the slave BLUETOOTH unit 202 and is configured forgenerating an answer message corresponding to the inquiry message. Theslave memory unit 204 is connected to the answering unit 203 and isconfigured for saving a second resolution of the slave screen 2011. Inthe present embodiment, the second resolution is 256 pixels multipliedby 192 pixels. The slave codec 205 is connected to the answering unit203 and is configured for encoding the answer message into the BLUETOOTHsignals. The slave codec 205 is also configured for decoding thecorresponding slave commands received from the master device 10. Theexecuting unit 206 is connected to the slave codec 205 and is configuredfor executing the corresponding slave commands decoded by the slavecodec 205.

Referring to FIGS. 1 to 3, in use, a start command is input through themaster interface 101 to start the master BLUETOOTH unit 102. Acommunication request is generated by the master BLUETOOTH unit 102. Astart command is input to start the slave BLUETOOTH unit 202 through theslave user interface 201. The communication request is transmitted tothe slave device 20 by the master BLUETOOTH unit 102 and is received bythe slave BLUETOOTH unit 202. Then, an accepting command is inputthrough the slave user interface 201 to accept the communicationrequest. A response message is generated by the slave BLUETOOTH unit 202and transmitted to the master device 10 by the slave BLUETOOTH unit 202.Thus, a wireless link between the master device 10 and the slave device20 via the master BLUETOOTH unit 102 and the slave BLUETOOTH unit 202 isestablished.

Then the master device 10 transmits a copy of the conference document tothe slave device 20 by the master BLUETOOTH unit 102. The copy of theconference document is received by the slave BLUETOOTH unit 202 and thenis saved in the slave memory unit 204. Thus, the conference documentsaved in the master memory unit 104 and the copy of the conferencedocument saved in the slave memory unit 204 with the same conferencedocument name and format. In the present embodiment, the conferencedocument and the copy of conference document are named “meeting.ppt” andin Microsoft PowerPoint (PPT) format.

Then an inquiry message for obtaining the second resolution saved in theslaved memory unit 204 is generated by the inquiry unit 103. The inquirymessage is transmitted to the master codec 107, encoded by the mastercodec 107 into BLUETOOTH signals, and then transmitted to the slavedevice 20 by the master BLUETOOTH unit 102. The inquiry message isreceived by the slave BLUETOOTH unit 202, and transmitted to the slavecodec 205, and decoded by the slave codec 205. Then the inquiry messageis transmitted to the answering unit 203. The answering unit 203 fetchesthe second resolution from the slave memory unit 204 according to theinquiry message. The answering unit 203 generates an answer messagecontaining the second resolution. The answer message is encoded by theslave codec 205 into BLUETOOTH signals and is transmitted to the masterdevice 10 by the slave BLUETOOTH unit 202. The answer message isreceived by the master BLUETOOTH unit 102 and is transmitted to themaster codec 107 and decoded by the master codec 107. Then the answermessage is transmitted to the analyzing unit 105. The second resolutionis extracted from the answer message decoded by the master codec 107.The analyzing unit 105 calculates a resolution ratio between the secondresolution and the first resolution. In the present embodiment, thefirst resolution is 256 pixels multiplied by 192 pixels, the secondresolution is 1024 pixels multiplied by 768 pixels, namely, theresolution ratio between the second resolution and the first resolutionis ¼. The resolution ratio is saved in the master memory unit 104.

The conference document saved in the master memory unit 104 can beoperated by inputting operation commands through the master userinterface 101, for example, using the mouse 1012. The operation commandsinclude to open the conference document, to play the conferencedocument, or to close the conference document.

First, an operation command to open the conference document is inputthrough the master user interface 101. The conference document isdisplayed on the master screen 1011 in full screen. The conferencedocument is shown in a window 30. The window 30 includes a title bar 301and a menu bar 302. The title bar 301 includes a close button 3011. Themenu bar 302 includes a play button 3021. The operation command to openthe conference document is converted to a corresponding command to openthe copy of the conference document saved in the slave memory unit 204.The corresponding command to open the copy of the conference documentcontains the name and the format of the copy of conference document, andan action of opening. The corresponding command to open the copy of theconference document is encoded by the master codec 107 in BLUETOOTHsignals and then is transmitted by the master BLUETOOTH unit 102. Thecorresponding command to open the copy of the conference document isreceived by the slave BLUETOOTH unit 202 and is decoded by the slavecodec 205. Then the corresponding operation to open the copy of theconference document is decoded by the slave codec 205 and is transmittedto the executing unit 206. The copy of the conference document is openedby the executing unit 206 according to the corresponding command to openthe copy of the conference document decoded by the slave codec 205. Thecopy of the conference document is display on the slave screen 2011 infull screen. The copy of the conference document is shown in a window 30a. The window 30 a includes a title bar 301 a and a menu bar 302 a. Thetitle bar 301 a includes a close button 3011 a. The menu bar 302 aincludes a play button 3021 a.

When the user of the master device 10 wants to play the conferencedocument displayed on the master screen 1011, the play button 3021 isselected. Thus, an operation command to play the conference document isinput through the master user interface 101. In one embodiment, themouse 1012 is applied to select the play button 3021. The position ofthe play button 3021 on the master screen 1011 is at 512 pixelsmultiplied by 24 pixels. The mouse 1012 is moved to the position of 512pixels multiplied by 24 pixels to clicks the play button 3021. Then theconference document is played on the master screen 1011. Correspondingposition of the play button 3021 a in the slave screen 2011 iscalculated by the analyzing unit 105 according to the resolution ratio.The corresponding position on the slave screen 2011 is equal to theresolution ratio multiplied by the position of play button 3021. Thecorresponding position of the play button 3021 a is (512 pixelsmultiplied by 24 pixels) multiplied by ¼, namely, the correspondingposition of the play button 3021 a on the slave screen 2011 is 128pixels multiplied by 6 pixels. The operation command to play theconference document displayed on the master screen 1011 is converted toa corresponding command to play the copy of the conference documentdisplayed on the slave screen 2011 by the command converting unit 106.The corresponding command to play the copy of the conference documentcontains the corresponding position of the play button 3021 a and anaction of playing.

Then corresponding command to play the copy of the conference documentis encoded by the master codec 107 in BLUETOOTH signals and istransmitted by the master BLUETOOTH unit 102. The corresponding commandto play the copy of the conference document is received by the slaveBLUETOOTH unit 202 and is decoded by the slave codec 205. Then thecorresponding operation to play the copy of the conference document istransmitted to the executing unit 206. The play button 3021 a isselected by the executing unit 206 according to the correspondingcommand to play the copy of the conference document decoded by the slavecodec 205. The copy of the conference document displayed in slave screen2011 is played.

When the user of the master device 10 closes the conference documentdisplayed on the master screen 1011, the close button 3011 is selected.An operation command to close the conference document displayed on themaster screen 1011 is input through the master user interface 101. Inone embodiment, the mouse 1012 is applied to select the play button3011. The position of the play button 3011 on the master screen 1011 isat 896 pixels multiplied by 20 pixels. The mouse 1012 is moved to theposition of 896 pixels multiplied by 20 pixels to click the close button3021. Then the conference document displayed on the master screen 1011is closed. A corresponding position of the close button 3011 a in theslave screen 2011 is calculated by the analyzing unit 105 according tothe resolution ratio. The corresponding position of the play button 3011a on the slave screen 2011 is equal to the resolution ratio multipliedby the position of the play button 3021. The corresponding position is(896 pixels multiplied by 20 pixels) multiplied by ¼, namely, thecorresponding position of the close button 3011 a on the slave screen2011 is 224 pixels multiplied by 5 pixels. The operation command toclose the conference document displayed on the master screen 1011 isconverted to a corresponding command to close the copy of the conferencedocument displayed on the slave screen 2011 by the command convertingunit 106. The corresponding command to close the copy of the conferencedocument contains the corresponding position of the close button 3011 aand an action of closing.

Then corresponding command to close the copy of conference document isencoded by the master codec 107 in BLUETOOTH signals and is transmittedby the master BLUETOOTH unit 102. The corresponding command to close thecopy of the conference document is received by the slave BLUETOOTH unit202 and is decoded by the slave codec 205. Then the correspondingcommand to close the copy of the conference document is decoded by theslave codec 205 and is transmitted to the executing unit 206. The closebutton 3011 a is selected by the executing unit 206 according to thecorresponding command to play the copy of the conference documentdecoded by the slave codec 205. The conference document displayed inslave screen 2011 is closed.

It will be understood that the above particular embodiments are shownand described by way of illustration only. The principles and thefeatures of the present disclosure may be employed in various andnumerous embodiment thereof without departing from the scope of thedisclosure as claimed. The above-described embodiments illustrate thescope of the disclosure but do not restrict the scope of the disclosure.

1. A wireless conference system, comprising: a master device, the masterdevice comprising a master user interface, a master BLUETOOTH unit, aninquiring unit, a master codec, a master memory unit, an analyzing unit,and a command converting unit, the master user interface comprising amaster screen, the master memory unit being configured to save aconference document and a first resolution of the master screen; and aslave device comprising a slave user interface, a slave unit, a slavecodec, a slave memory unit, an answering unit, and an executing unit,the slave user interface comprising a slave screen, the slave memoryunit being configured to save a second resolution of the slave screenand the copy of the conference document having the same name and formatwith the conference document; wherein the master BLUETOOTH unit isconfigured to establish a wireless link with the slave BLUETOOTH unit,the inquiring unit is configured to generate an inquiry messageobtaining the second resolution, the answering unit is configured toreceive the inquiry message and generate an answer message containingthe second resolution in response to the inquiry message, the analyzingunit is configured to receive the answer message and extract the secondresolution from the answer message and calculate a resolution ratio ofthe second resolution and the first resolution, and the master memoryunit is configured to save the resolution ratio; wherein the commandconverting unit is configured to convert operation commands input fromthe master user interface to corresponding slave commands, the mastercodec is configured to encode the corresponding slave commands, themaster BLUETOOTH unit is configured to transmit the encoded slavecommands to the slave BLUETOOTH unit, the slave codec is configured todecode the encoded slave commands, and the executing unit is configuredto execute the corresponding slave commands.
 2. The wireless conferencesystem of claim 1, wherein the operation commands comprises opening,playing, or closing the conference document in the master device.
 3. Thewireless conference system of claim 2, wherein the corresponding slavecommand comprises opening, playing, or closing the copy of theconference document in the slave device.
 4. The wireless conferencesystem of claim 3, wherein the conference document is displayed on themaster screen.
 5. The wireless conference system of claim 4, wherein thecopy of the conference document is displayed on the slave screen.
 6. Thewireless conference systems of claim 1, wherein the master userinterface is configured to input a start command to start the masterBLUETOOTH unit.
 7. The wireless conference systems of claim 6, whereinthe master BLUETOOTH unit is configured to generate a communicationrequest.
 8. The wireless conference systems of claim 7, wherein theslave user interface is configured to input a start command to start theslave BLUETOOTH unit and input an accepting command to accept thecommunication request when the slave BLUETOOTH unit receives thecommunication request, the slave BLUETOOTH unit is configured to receivethe accepting command from the slave user interface and generate aresponse message corresponding to the communication request.
 9. Thewireless conference systems of claim 1, wherein the master codec isconfigured to encode the inquiring message into BLUETOOTH signals, andthe slave codec is configured to encode the answer message intoBLUETOOTH signals.
 10. The wireless conference systems of claim 1,wherein the copy of the conference document saved in the slave memoryunit is transmitted from the master device by the master BLUETOOTH unitand the slave BLUETOOTH unit.
 11. The wireless conference systems ofclaim 1, wherein the master device is a computer.
 12. The wirelessconference systems of claim 1, wherein the slave device is a cell phone.